James w



(No Model.)

J..W..STOKES & F. J. PERRETT.

BOLT OB. RIVET CLIPPER.

Patented Aug. 5, 1890.

I i aaiwamtow 16 QM: 07/1/1011- I A UNITED STATES PATENT OFFICE.

JAMES XV. STOKES AND FRANK J. PERRETT, OF SYRACUSE, NEW YORK;

SAID PERRETT ASSIGNOR TO SAID STOKES.

BOLT OR RIVET CLIPPER.

SPECIFICATION forming part of Letters Patent No. 433,914, dated August5, 1890.

Application filed October 19, 1889. Serial No. 327,591- (No model.)

To all whom it may concern:

Be it known that we, JAMES W. SToKEs and FRANK J. PERRETT, citizens ofthe United States, residingIat Syracuse, in the county of Onondaga andState of New York, have invented certain new and useful Improvements inBolt or Rivet Clippers; and we do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, in which Figurelis a plan view of our improved bolt or rivet clipper; Fig. 2, an edgeview of the upper portion of-same-2'. e., the cutting or main portion ofthe implement; Fig. 3, an enlarged plan View of aforenarned portion ofour implement with certain parts broken away and shown in section forbetter illustration of detail construction; Fig. 4, an enlargedtransverse section taken upon line .10 a Fig. 1, looking downward; andFig. 5 isan enlarged detail of upper portion of one handle, attachedhead portions, and other component parts.

Throughout the several views similar lettors and figures of referenceindicate corresponding parts.

This invention relates to that class or description of implements ortools designed and adapted for the cutting in'two of bolts, rivets,wrought-metal bars, rods, &c.

The object of our'invention is to construct an implement of the classdescribed that will, under all conditions, completely out in twainbolts, rivets, and wrought-iron rods and bars; that is readily adjustedfor the insuring of absolute and perfect contact of the cuttingedges ofthe cutting-blades of the implement; that is provided with removableinterchangeable parts, and which combines simplicity and durability ofconstruction with effectiveness, reliability, and ease of operation.

Our invention consists in the novel features of construction andcombination of parts, as hereinafter described, and specificallyenumerated in the claims hereunto annexed.

It is constructed as follows: A A designate the shearing or cuttingblades of our implement, which blades are at their upper portionconnected together by straps a (1, extended across opposite sides of thesaid blades, with bolts or rivets passing through them, therebypermitting the required oscillating movement of the blades.

17 is a pin interposed between the adjacent edges of the cutting-bladesA A, and which is securely seated in recesses in said edges,"

whereby the blades are effectuallyprevented from shiftinglongitudinally, as the straps a a, lying over the ends of the pin 1),confine the said pin in proper position, as clearly illustrated in Fig.3 of the drawings.

B B are the. operating-handles (or levers) of our implement, comprising,respectively, a rod 1, bent over upon itself about midway its length,and twisted or otherwise brought securely together ata suitable distancefrom its outward bent or rounded extremity s, as at e, and creatingbelow said point the loop portion 0 (for the hand of the operator tograsp) and above the twist c the longitudinal spring-arms d d,practically parallel, except that they diverge from each other, startingat the twist or overlap 6, forward to their ends, and thus causing theirends to be a suitable distance apart from eachother, for the purposedescribed in the following paragraph.

The extremity of the arm cl of the respective handles 13 isscrew-threaded at its end portion, and is screwed (or otherwise secured)into the head portion O, which is bifurcated a requisite distance, asshown, the walls created by the bifurcation terminating in ears ff,between which we pivotally mount by a pin g the end of the shank t ofthe overhead cutting-blade A, which pin We slightly rivet at its ends.

Theextremity of the arm d of the respective handles 13 is screwed (orotherwise socured) into the head 0, which head portion is bifurcated arequired distance, and the vertical walls formed thereby terminate inthe segmental gear portion h h.

In the adjacent edges of the adjacent heads 0 and O of the respectivehandles B we form small transverse semicircular recesses '1; i, whichextend through the walls formed by the bifurcation, and within thepractically circular aperture K, formed by the conjunction of therecessess i1),is seated the adjusting-pin Z, riveted at its ends forgreater security.

The respective heads 0 and C of the respective handles B are heldimmovably together by a transverse headed bolt m, screwthreaded at itsend, that extends through the perforations n n',formed through thenon-bifurcated portion of the adjacent heads, and which boltcoincidently passes through transverse perforations made in the securedends of the arms d and d of their respective handles. Said headed bolt mbeing provided with a nut at its threaded extremity, the adjacent headsC O are held rigidly together. The bolt m passing through the threadedends of the arms (Z d of the handle, serves to more eifectually securethe threaded ends of the aforenamed arms, preventing the turning orwithdrawal of same from accident or otherwise entailed in operating theimplement. If deemed advisable, we can allow the entering ends of thearms (I cZ, extending upward into their head portion, to terminate belowthe bolt m. Our preference, however, is the manner of construction firstdescribed, as an additional hold is thereby assured.

The segments h '71. of the respective heads 0' (each secured to itscompanion head 0) are connected with each other by a link or block D,fitted into the bifurcation of the said adjoining heads 0 by pivotalbolts or rivets p, passingthrough the parts and headed at their ends.This block D thereby holds the segmental gears h h of the adjoiningheads 0 C movably interlocked with each other, as clearly shown in thedrawings.

By operating the handles (or levers) B B in the manner of shears thecutting-blades A A receive a similar motion, which, though lessened indegree, is correspondingly increased in power, owing to the immensefulcrum obtained by our construction and arrangement of parts; also, theinterlocked segments necessarily compel the handles to work in perfectunison.

Our object in forming the recesses z t" in the adjacent edges of thecompanion heads 0 O, and the seating within the practically circularaperture formed by the two in unison, of a pin Z, of desiredcircumference or size, is for the purpose of adjusting the cutter-bladesA A and insuring the contact of their cuttingedges, thus allowing forthe wear thereof from usage.

In using our implement we make use of at the outset a pin of medium'sizeseated in the aperture K, formed by the union of the recesses t' z". Asthe cutting-edges of the cutting-blades become worn away through usage,it is essential that the cutting-edges of the cutters should continue tocome together to insure perfect service, and to allow or compensate forsaid wear we replace the alreadyseated adjusting-pin Z by a pin oflarger circumference or diameter, the size depending upon the degree towhich the cutting-edges of the cutters are worn away. To remove analready-seated adjusting-pin to be replaced by one of a larger size, weremove the nut from the end of the bolt m, withdrawing said bolt, andplace a piece of suitable metal between the shanks of the cutting-bladesjust back of the straps. Then open the divergent arms of the handle (orhandles) sufficiently to spring said arms a suitable distance apart andlet the adj Listing-pin drop out of the aperture in which it is seated.Then place into the aperture a pin Z, of larger diameter, allow the armsand connected heads to spring toward each other, insert the bolt on inplace and screw the nut up tightly, slightly riveting the ends of thesubstituted pin. The adjustment may be made to one or both thecutting-blades at one time or not, as may prove necessary.

It will be observed that by the insertion into position of an adjustment-pin of a larger size than the one removed the eitect thereof isto throw the point of pivotature of one or both cutting-blades, (whenthey connect with the heads 0,) or, rather, their shanks, outward fromthe center of the implement, and thereby impelling the cutting-edges ofthe cuttingblades toward each other, thus compensating for the loss ofmaterial from wear on said edges.

By constructing our handles (or levers) of an integral metallic rodformed as hereinbefore described we obtain a handle that is durable andeffective, and permitting of ready adaptability to our novelconstruction of the class of implement described.

Preferably we construct all the parts entering into the formation of ourimplement of steel.

Having described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. In a bolt or rivet clipper, the heads C O O 0', each outer head 0being adjustably and removably connected to an adjacent companion headC',the adjacent inner heads 0 of each pair 0 0' being pivotallyconnected together and their terminating se mental gears engaging onewith the other, a cutting-blade pivotally connected to each head 0 O, arecess in the adjacent sides of the respective companion heads 0 C, anadjusting-pin seated in the aperture formed by the aforesaid adjacentrecesses, and a handle secured conjointly to each pair of heads 0 C byarms (Z d, entering the lower or shank portion thereof, substantially asdescribed.

2. In a bolt or rivet clipper, in combination, the separate heads 0 (J GG, bifurcated at their upper portion, each outer head 0 being held toits adjacent companion head 0' by a transverse fastening-bolt passingthrough said heads, the adjacent inner heads C of each pair 0 Opivotally connected together by a suitable link and their serratedsegmental upper extremities engaging one with the other, a separatecutting-blade pivotally connected to the respective heads 0 of each pairof heads 0 O, a recess within the adjacent parallel sides of therespective companion heads 0 C, that-in conjunction. creates an aperturein which is seated an adj Listing-pin of required size interposedbetween the adjacent companion heads at their recessed portion,and atwo-armed handle portion secured respectively to the companion heads 0 Oat their shank portions, substantially as described.

3. In a bolt or rivet clipper, the separate heads 0 O C C, bifurcated attheir upper portion, each outer head C being held to its adjacentcompanion head 0' by a transverse fastening-bolt passing through saidheads, the adjacent inner heads 0 of each pair 0 C pivotally attachedtogether by a link-connection and their serrated segmental upwardextremities engaging one with the other, a separate cutting-blade pivotally connected to the respective heads 0 of each pair of heads 0 C, arecess in the adjacent sides of the respective companion heads O C, thatconjointly form an aperture in which is seated an adjusting-pin, andhandles B, formed of an integral rod bent to shape and comprising,respectively, a loop, a twist, and a pairot' longitudinallyextended armsthat are attached to the respective companion heads 0 C of theimplement, all combined and operating together substantially asdescribed, and for the purposesspecified.

In testimony whereof We affix our signatures, in the presence of twoWitnesses, this 17th day of August, 1889.

JAMES XV. STOKES. FRANK J. PERRETT.

